code: def __init__(self):
      super(DummyEngine, self).__init__(lambda e, b: 1)
  
imports: import functools
  import gc
  from unittest.mock import call, create_autospec, MagicMock
  import pytest
  from pytest import raises
  from ignite.engine import Engine, Events, State
  from ignite.engine.events import EventsList
label_desc: Use image node_id 1 to create a new DummyEngine object from inherited base classes: Engine with example: obj = DummyEngine()